20442101201 has 2 divisors, whose sum is σ = 20442101202. Its totient is φ = 20442101200.

The previous prime is 20442101117. The next prime is 20442101209. The reversal of 20442101201 is 10210124402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19930662976 + 511438225 = 141176^2 + 22615^2 .

It is a cyclic number.

It is not a de Polignac number, because 20442101201 - 2³⁰ = 19368359377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20442101201.

It is not a weakly prime, because it can be changed into another prime (20442101209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10221050600 + 10221050601.

It is an arithmetic number, because the mean of its divisors is an integer number (10221050601).

Almost surely, 2^20442101201 is an apocalyptic number.

It is an amenable number.

20442101201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20442101201 is an equidigital number, since it uses as much as digits as its factorization.

20442101201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20442101201 its reverse (10210124402), we get a palindrome (30652225603).

The spelling of 20442101201 in words is "twenty billion, four hundred forty-two million, one hundred one thousand, two hundred one".